Doormat device for cleaning shoe sole
OwnerDong Hyun Kanginventor
Life of this patent
Estimating the term…
Abstract
The present disclosure provides an automatic doormat device for detecting and replenishing contaminated surface to keep contaminants from entering the house. An exemplary doormat device comprises a sticky sheet configured to adhesively pick up contaminants; a first roller configured to support windings of the sticky sheet; a second roller, spaced apart from the first roller, configured to wind the sticky sheet unwound from the first roller in rotation; a case configured to enclose the first roller and the second roller and support the sticky sheet on a portion exposed between the first roller and the second roller; and a drive motor configured to generate a driving force for rotating the second roller.
Claims19
A doormat device, comprising:
- a sticky sheet having an adhesive surface;
- a first roller configured to support a winding of the sticky sheet;
- a second roller, spaced apart from the first roller, configured to wind the sticky sheet unwound from the first roller in rotation;
- a case configured to enclose the first roller and the second roller and support the sticky sheet on a portion exposed between the first roller and the second roller;
- a drive motor configured to generate a driving force to rotate the second roller;
- and
- a controller configured to control an operation of the drive motor based on a result of counting an event comprising a detection of a pressure on the sticky sheet equal to or greater than a predetermined pressure and a subsequent release of the pressure.
A doormat device, comprising:
- a roller configured to carry a sticky sheet having an adhesive surface;
- a roller drive configured to expose an unused portion of the sticky sheet by rotating the roller in response to a predetermined operating condition being satisfied:
- a case configured to enclose the roller and the roller drive;
- and a power cable configured to supply power to the roller drive;
- and a pair of covers configured to define opposite side enclosures of the doormat device, the covers being swivable to open and close the opposite side enclosures, respectively.
A doormat device, comprising:
- a roller that carries a sticky sheet having an adhesive surface;
- a controller configured to perform detection, a certain number of times or greater, of a pressure on the sticky sheet equal to or greater than a predetermined pressure and a subsequent release of the pressure;
- a roller drive configured to expose an unused portion of the sticky sheet by rotating the roller according to a result of the detection by the controller and a case configured to enclose the roller and the roller drive.
Dependencies are inferred from the claim text.